US7037152B2 - Steering apparatus for an outboard marine engine - Google Patents

Steering apparatus for an outboard marine engine Download PDF

Info

Publication number
US7037152B2
US7037152B2 US10/924,765 US92476504A US7037152B2 US 7037152 B2 US7037152 B2 US 7037152B2 US 92476504 A US92476504 A US 92476504A US 7037152 B2 US7037152 B2 US 7037152B2
Authority
US
United States
Prior art keywords
linking means
tilt
piston rod
tube
link shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US10/924,765
Other languages
English (en)
Other versions
US20050221696A1 (en
Inventor
Katsuhiko Sasayama
Kenichi Shimada
Katsuhiko Arakawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marol Co Ltd
Ys Gear Co Ltd
Original Assignee
Marol Co Ltd
Ys Gear Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marol Co Ltd, Ys Gear Co Ltd filed Critical Marol Co Ltd
Assigned to Y'S GEAR CO., LTD., MAROL CO., LTD. reassignment Y'S GEAR CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ARAKAWA, KATSUHIKO, SHIMADA, KENICHI, SASAYAMA, KATSUHIKO
Publication of US20050221696A1 publication Critical patent/US20050221696A1/en
Application granted granted Critical
Publication of US7037152B2 publication Critical patent/US7037152B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/08—Means enabling movement of the position of the propulsion element, e.g. for trim, tilt or steering; Control of trim or tilt
    • B63H20/12—Means enabling steering

Definitions

  • the present invention relates to an outboard marine engine which can be mounted on the (transom) stern of the hull of a fishing boat, a motorboat, a yacht or another boat.
  • the invention relates to a steering apparatus easy to fit to any type of clamp bracket fixed to the boat hull on which an outboard marine engine is mounted.
  • a conventional outboard marine engine of this type is supported by an engine bracket, which is supported pivotably on a tilt tube (a through tube).
  • the tilt tube extends along a horizontal tilt axis, around which the outboard marine engine can tilt.
  • the tilt tube extends through a clamp bracket, which is fixed to a boat hull.
  • the outboard marine engine can turn around a steering axis, which is roughly perpendicular to the engine bracket, to steer the boat.
  • the boat can be steered either hydraulically with a hydraulic cylinder or mechanically with push-pull cables by turning the steering handle.
  • a boat fitted with an outboard marine engine of relatively low horsepower can be steered mechanically with push-pull cables.
  • a boat fitted with an outboard marine engine of high horsepower can be steered with a hydraulic cylinder, which slides along a horizontal piston rod. Both ends of the piston rod are supported by a pair of arms, which is supported by both ends of a horizontal tilt tube.
  • Japanese Examined Patent Publication No. H3-33559 discloses an outboard marine engine, which is connected to a hydraulic cylinder by a steering lever.
  • the hydraulic cylinder can slide along a piston rod, both ends of which are supported by a pair of arms.
  • the arms are supported pivotably by both ends of a tilt tube.
  • clamp brackets which can be fitted on boat hulls.
  • the clamp brackets are classified mainly as detachable brackets suitable for boats and fixed brackets, which can be screwed in advance to boat hulls.
  • Each of the detachable brackets includes a hook, which extends downward and is fitted with a clamp.
  • the hydraulic cylinder can slide along a piston rod, which is supported by a pair of arms.
  • the arms are supported by both ends of a tilt tube, which extends along the tilt axis. Both ends of the tilt tube have threads cut outside them. Different tilt tubes may have end threads of different sizes.
  • the steering angles on both sides may differ depending on the initial position of the cylinder, and/or on how the cylinder is connected to a steering lever, which connects it to the outboard marine engine. This makes it difficult to steer the boat to a maximum of 35 degrees equally on each side.
  • the object of the present invention is to provide a hydraulic steering apparatus that can be fitted to any type of clamp bracket fixed to the boat hull on which an outboard marine engine is mounted, and that can tilt to the maximum without interfering with the bracket and steer the boat to the maximum equally on each side.
  • a steering apparatus is supported by a bracket fixed to the stern of a hull, on which an outboard marine engine is mounted.
  • the steering apparatus can turn the engine to the limit in opposite directions on a substantially vertical axis.
  • the steering apparatus can tilt on a substantially horizontal tilt axis.
  • the steering apparatus includes a tilt tube extending along the tilt axis and supported by the bracket.
  • First and second linking means are supported by both ends of the tilt tube pivotably around the tube.
  • the linking means support both ends of a piston rod and both ends of an eccentric link shaft.
  • a steering hydraulic cylinder is supported by the piston rod slidably along it.
  • the eccentric link shaft is positioned between the tilt tube and the piston rod and higher than the tilt tube. The distance between the tilt tube and the piston rod is shorter than the sum of the distance between the tilt tube and the eccentric link shaft and the distance between the eccentric link shaft and the piston rod.
  • connection of the tilt tube and the piston rod through the eccentric link shaft absorbs the displacement of the steering hydraulic cylinder which is longitudinal of the boat when the outboard engine is turned right and left to steer the boat.
  • This connection enables the linking means to be so shaped as to avoid interfering with the bracket, whether detachable or fixed, when the engine tilts.
  • the piston rod may be longer than the eccentric link shaft.
  • Each of the linking means may include a first arm and a second arm.
  • the first arm links the tilt tube and the eccentric link shaft together.
  • the second arm links the eccentric link shaft and the piston rod together.
  • the second arm supports the adjacent ends of the eccentric link shaft and piston rod at two points spaced axially from each other.
  • the second arm has an arm length enabling it to support the longer piston rod.
  • the two arms are connected together pivotably with respect to each other around the eccentric link shaft.
  • the piston rod having a cylinder stroke long enough to achieve the necessary steering angle can be positioned between the two arms of each linking means.
  • the arms do not interfere with the bracket when the engine tilts.
  • Each of the linking means may include a body and an arm.
  • the body has a cylindrical cavity formed in it.
  • the arm is spaced from the body axially of the cylindrical cavity and supports the adjacent end of the piston rod.
  • a bush is fitted in the cylindrical cavity.
  • An eccentric cam is supported rotatably inside the bush.
  • the eccentric link shaft extends through the center of the eccentric cam.
  • the tilt tube extends rotatably through the eccentric cam and is spaced from the eccentric link shaft.
  • each of the linking means is a single unit, which can support the piston rod having a cylinder stroke long enough to achieve the necessary steering angle. This unit does not interfere with the bracket when the marine engine tilts.
  • the steering apparatus may further include an end fitting, which includes a substantially cylindrical body.
  • This body integrally includes a front portion, a flange and a barrel.
  • the front portion can be inserted loosely into the tilt tube when the first linking means is fitted to the tube.
  • the front portion has a conical surface converging forward.
  • the flange is formed between the front portion and the barrel and can contact with an end face of the tilt tube.
  • the barrel extends through the hole of the first linking means.
  • the cylindrical body has a thread cut inside it. A threaded rod extends through the cylindrical body, engages with the thread of this body and can engage at its rear end with a rotating tool.
  • a taper sleeve is fixed to the front end of the threaded rod, can be inserted loosely into the tilt tube and has a conical surface converging backward.
  • a first ring spring surrounds the conical surface of the cylindrical body.
  • a second ring spring surrounds the conical surface of the taper sleeve.
  • a cylindrical sleeve is interposed between the two ring springs.
  • a nut engages with the rear end of the threaded rod so as to fix the first linking means between the nut and the flange.
  • the nut may be resinous.
  • a washer may be interposed between the resinous nut and the first linking means. Even if the resinous nut is tightened excessively, it does not damage the linking means etc. Even if different linking means vary in width, it is possible to fix any of them by adjusting the number of washers.
  • FIG. 1 is a schematic perspective view of the stern of a boat, on which is mounted an outboard marine engine fitted with a steering apparatus embodying the present invention.
  • FIG. 2 is a partial side view of the steering apparatus.
  • FIG. 3 a is a perspective view of one of the linking means of the steering apparatus.
  • FIG. 3 b is a perspective view of a linking means which may replace that shown in FIGS. 2 and 3 a.
  • FIG. 4 a is a radial section of the linking means shown in FIG. 3 b.
  • FIG. 4 b is an end view of the linking means shown in FIGS. 3 b and 4 a.
  • FIG. 5 is a top plan of a steering apparatus embodying the present invention.
  • FIG. 6 is a top plan of another steering apparatus embodying the present invention.
  • FIG. 7 is an enlarged partial section of a steering apparatus embodying the present invention.
  • an outboard marine engine 1 is supported by an engine bracket 1 A, which is supported pivotably on a tilt tube (or through tube) 21 .
  • the tilt tube 21 extends along a horizontal tilt axis B through a hull bracket 2 , which is fixed to the stern of the hull 3 of a boat. Accordingly, the engine 1 can tilt in opposite directions “b” around the tilt axis B.
  • the boat can be steered by turning the engine 1 in opposite directions “a” on a steering axis A, which is roughly perpendicular to the engine bracket 1 A.
  • Both ends of the tilt tube 21 are fitted with end fittings 22 A and 22 B, each of which is connected with one end of a linking means 4 .
  • a piston rod 7 extends between the other ends of the two linking means 4 at both ends of the tilt tube 21 .
  • the piston rod 7 supports a steering hydraulic cylinder 8 , which can slide along it.
  • An eccentric link shaft 6 is positioned between the tilt tube 21 and piston rod 7 .
  • the two linking means 4 support the tilt tube 21 , link shaft 6 and piston rod 7 in parallel with the tilt axis B.
  • the bottom of the engine 1 is fitted with a steering lever 10 , which is connected to a connecting plate 9 .
  • the connecting plate 9 is bolted to the hydraulic cylinder 8 , which slides along the piston rod 7 to turn the engine 1 on the steering axis A.
  • FIG. 2 shows a steering apparatus, which is fitted to the hull bracket 2 .
  • the hull bracket 2 may be either a detachable bracket 2 A or a fixed bracket 2 B.
  • the detachable bracket 2 A is suitable for a relatively small hull 3 A.
  • This bracket 2 A includes a downward extension 2 Ab, which is fitted with a clamp 2 Aa for clamping the bracket to the hull 3 A.
  • the fixed bracket 2 B is screwed in advance to a relatively large hull 3 B.
  • the engine 1 can tilt up to a maximum of 75 degrees around the tilt axis B when the boat is landed, or when the engine 1 is raised completely out of the water.
  • the engine 1 tilts together with the linking means 4 , hydraulic cylinder 8 , steering lever 10 , etc. around the tilt axis B.
  • the eccentric link shaft 6 is positioned between the tilt tube 21 and piston rod 7 .
  • the two linking means 4 support the tilt tube 21 , eccentric link shaft 6 and piston rod 7 .
  • the distance between the tilt tube 21 and piston rod 7 is shorter than the sum of the distance between the tube 21 and eccentric link shaft 6 and the distance between the eccentric link shaft 6 and rod 7 . Accordingly, when the engine 1 tilts upward, the linking means 4 , hydraulic cylinder 8 , etc. do not interfere with the hull bracket 2 .
  • each linking means 4 consists of a first arm 4 A and a second arm 4 B.
  • the first arms 4 A of the two linking means 4 connect the tilt tube 21 and eccentric link shaft 6 .
  • the second arms 41 of the two linking means 4 connect the link shaft 6 and piston rod 7 .
  • the distance L 0 between the tilt tube 21 and piston rod 7 is shorter than the sum of the distance L 1 between the tube 21 and eccentric link shaft 6 and the distance L 2 between the shaft 6 and rod 7 . Accordingly, the arms 4 A and 4 B of each linking means 4 form an angle with each other.
  • the eccentric link shaft 6 is higher than the tilt tube 21 . Consequently, even when the engine 1 tilts up to the maximum of 75 degrees, with the arms 4 A and 4 B, eccentric link shaft 6 and piston rod 7 shifting to the positions represented by alternate long and short dash lines in FIG. 2 , the arms 4 A and 4 B, hydraulic cylinder 8 A, etc. do not interfere with the hull bracket 2 ( 2 A or 2 B).
  • each linking means 4 form an angle with each other. Accordingly, when the hydraulic cylinder 8 slides laterally of the boat, turning the steering lever 10 on the steering axis A, the two linking means 4 absorb the displacement of the hydraulic cylinder 8 which is longitudinal of the boat. This makes it possible to tilt the engine 1 to the maximum, with the boat steered at any angle, without affecting the tilting angle of the engine 1 .
  • FIGS. 5–7 show how the linking means 4 are fitted to the tilt tube 21 .
  • FIGS. 5–7 also show a conventional end fitting 30 , which can be fitted to a rated thread, and end fittings 40 according to the present invention.
  • the tilt tube 21 includes a rated threaded portion 21 a (7 ⁇ 8 inch) formed at its right (left in FIG. 6 ) end.
  • the end fitting 30 includes a tubular nut 31 and a shaft 32 , which are integral and coaxial with each other.
  • the nut 31 engages with the threaded portion 21 a .
  • the shaft 32 includes a threaded portion 33 formed at its outer end. This threaded portion 33 is surrounded by a bush 34 , which is fixed to the end fitting 30 by a nut 35 .
  • the adjacent linking means 4 is fitted around the bush 34 , with bearing means 34 a ( FIG. 7 ) interposed between them, so that the linking means 4 can pivot around the tilt tube 21 .
  • the tilt tube 21 includes a 7 ⁇ 8-inch threaded portion, an M 20 threaded portion or another threaded portion 21 b formed at its other end. Different makers make tilt tubes with threads differing in size, but all the tubes have an inner diameter of 16 mm. Therefore, in this embodiment, an end fitting 40 is fitted inside the tilt tube 21 .
  • the tilt tube 21 is fitted with the linking means 4 .
  • the left (right in FIG. 5 ) end of the tilt tube 21 is fitted with an end fitting 40 including a spacer 48
  • the other end is fitted with an end fitting 40 A including no spacer.
  • the end fitting 40 includes a fitting body 41 , a threaded rod 42 , a taper sleeve 43 , two ring springs 44 , a cylindrical sleeve 45 and a nut 46 .
  • the fitting body 41 is roughly cylindrical and includes a front portion 41 b , a flange 41 c and a barrel 41 d .
  • the front portion 41 b includes a taper portion 41 a and can be inserted loosely into the adjacent end of the tilt tube 21 .
  • the flange 41 c is formed between the front portion 41 b and barrel 41 d , and can be in contact with the adjacent end face 21 d of the tilt tube 21 .
  • the barrel 41 d is surrounded by a bush 34 , which is fixed to the fitting body 41 by a nut 46 , with a washer 47 interposed between the bush and nut.
  • the spacer 48 is interposed between the flange 41 c and bush 34 .
  • the first arm 4 A of the adjacent linking means 4 is fitted around the bush 34 , with bearing means 34 a interposed between them, so that the linking means 4 can pivot around the fitting body 41 .
  • the first arm 4 A has a hole formed through its end portion opposite its end connected to the associated second arm 4 B.
  • the barrel 41 d of the fitting body 41 is put into the hole of the first arm 4 A, with the bush 34 interposed between them.
  • the bush 34 is fixed to the barrel 41 d by the nut 46 , with the washer 47 interposed between them.
  • the nut 46 is resinous, so that it does not damage the first arm 4 A etc. even if it is tightened up. Even if different linking means vary in width, it is possible to fix any of them by adjusting the number of washers.
  • the barrel 41 d of the fitting body 41 has a thread 41 e cut inside it.
  • the thread 41 e engages with the threaded rod 42 .
  • the taper sleeve 43 engages with the inner end of the threaded rod 42 .
  • the cylindrical sleeve 45 is interposed between the taper sleeve 43 and fitting body 41 around the threaded rod 42 . After the taper sleeve 43 engages with the threaded rod 42 , the rear end of the sleeve 43 is bonded, caulked or otherwise fixed to the rod 42 .
  • the conical surface of the taper portion 41 a of the fitting body 41 is surrounded by one of the ring springs 44 .
  • the conical surface of the taper sleeve 43 is surrounded by the other ring spring 44 .
  • the cylindrical sleeve 45 is interposed between the two ring springs 44 .
  • the ring springs 44 can, in their normal states, be put into the tilt tube 21 and have unground sandy surfaces covered with black rust.
  • the taper sleeve 43 and cylindrical sleeve 45 as well can be put into the tilt tube 21 .
  • this fitting is inserted into the adjacent end of the tilt tube 21 until the flange 41 c comes into contact with the end face 21 d of the tube 21 .
  • the threaded rod 42 is rotated, moving the taper sleeve 43 toward the fitting body 41 . Consequently, the conical surfaces of the taper portion 41 a of the fitting body 41 and the taper sleeve 43 expand the ring springs 44 , bringing the sandy spring surfaces into compressive contact with the inner peripheral surface of the tilt tube 21 so that the body 41 can be fixed to the tube 21 .
  • the threaded rod 42 may have a hexagonal hole (not shown) formed in its outer end face for engaging with a wrench or another rotating tool, with which the rod 42 can be rotated. Of course, the threaded rod 42 may be rotated otherwise.
  • the threaded rod 42 is threaded over its whole length, but might be threaded only at both its end.
  • the fitting body 41 , threaded rod 42 , taper sleeve 43 , etc. are made of stainless steel, but might be made of other material.
  • the conventional end fitting 30 may engage with the rated threaded portion 21 a of the tilt tube 21 .
  • One of the end fittings 40 according to the present invention may be fitted to the end of the tilt tube 21 , where the threaded portion 21 b is located.
  • the linking means 4 are supported pivotably by the end fitting 30 and 40 . Even in this case, it is possible to center the steering hydraulic cylinder 8 for various outboard engines by adjusting the arm length LB of the second arms 4 B of the linking means 4 and the width “t” of the spacer 48 .
  • each linking means 4 are connected pivotably with respect to each other by the eccentric link shaft 6 , with a bearing, a bush or another means 4 a fitted around the shaft 6 .
  • the other end of the second arm 4 B has a hole 4 Ba formed through it.
  • the piston rod 7 extends through the holes 4 Ba of the second arms 4 B of the two linking means 4 . Nuts 7 a engage with both ends of the piston rod 7 and are tightened to fix the second arms 413 to it.
  • Each second arm 4 B includes an inner portion, a middle portion and an outer portion.
  • the inner and outer portions are parallel with each other and connected together by the middle portion, which is perpendicular to them.
  • the inner and outer portions support the adjacent ends of the eccentric link shaft 6 and piston rod 7 , respectively.
  • the second arms 4 B have an arm length LB, which makes it possible to fit the piston rod 7 longer than the eccentric link shaft 6 . This enables the piston rod 7 to be longer than the eccentric link shaft 6 and tilt tube 21 .
  • the hydraulic cylinder 8 may be an oil cylinder.
  • the hydraulic cylinder 8 houses a piston (not shown), which is fixed to the piston rod 7 .
  • the hydraulic cylinder 8 is fitted with a pair of pipe joints 8 a and 8 b at both ends. Pressure oil is supplied to the hydraulic cylinder 8 and discharged from it through the pipe joints 8 a and 8 b to slide the cylinder along the piston rod 7 .
  • the connecting plate 9 is bolted to the hydraulic cylinder 8 .
  • the steering lever 10 can pivot on a bolt 10 a fixed to the connecting plate 9 .
  • the steering lever 10 might be connected directly to the hydraulic cylinder 8 .
  • the steering lever 10 connects the hydraulic cylinder 8 and engine 1 together so that, when the cylinder 8 slides, the engine 1 turns right and left to steer the boat. If the steering angle of the boat hull needs to be set to the maximum on both sides, it is essential that the hydraulic cylinder 8 should slide within equal ranges on both sides. Specifically, it is necessary that, when the engine 1 is oriented on the centerline of the boat (at the steering angle of 0 degree), the hydraulic cylinder 8 be positioned in the middle of the piston rod 7 .
  • the hydraulic cylinder 8 which has a whole length 8L, slides equally in opposite directions along the effective length LA of the piston rod 7 so that the engine 1 turns over the steering angle ⁇ on each side.
  • each linking means 4 are linked together pivotably with respect to each other on the eccentric link shaft 6 . Accordingly, the two linking means 4 absorb the variation in the relative position between the steering lever 10 and hydraulic cylinder 8 so that the engine 1 can be tilt at any steering angle.
  • FIGS. 3 b , 4 a and 4 b show a linking means 4 C which may replace each of the linking means 4 .
  • the linking means 4 C has a cylindrical body 4 Ca and an arm 4 Cb.
  • the cylindrical body 4 Ca has a cylindrical cavity 4 Cd, in which a bush 6 Aa is fitted.
  • the cylindrical body 4 Ca supports an eccentric cam 6 A, which can turn inside the bush 6 Aa.
  • One end of the eccentric link shaft 6 is supported by the eccentric cam 6 A.
  • the eccentric link shaft 6 extends through the center of the eccentric cam 6 A.
  • the supporting rod 6 B is connecting to the eccentric link shaft 6 .
  • the rod 6 B is fitted to the center of the eccentric cam 6 A and also fitted to the cylindrical body 4 Ca with bearing means 6 C.
  • eccentric link shaft 6 and the rod 6 B are rotatable against the linking means 4 C.
  • the adjacent end of the tilt tube 21 is supported rotatably by the eccentric cam 6 A with bearing means 34 A and spaced radially from the eccentric link shaft 6 .
  • the adjacent end of the piston rod 7 is supported by the arm 4 Cb.
  • the eccentric link shaft 6 is positioned on the axis of the eccentric cam 6 A.
  • the tilt tube 21 is positioned at the radial distance L 1 from the link shaft 6 .
  • the piston rod 7 is positioned at the radial distance L 2 from the eccentric link shaft 6 . Accordingly, the linkage of the link shaft 6 , piston rod 7 and tilt tube 21 through the linking means 4 C is equivalent to that through the linking means 4 .
  • the arm 4 Cb is spaced by a distance LC axially of the cylindrical body 4 Ca from the eccentric cam 6 A, through which the eccentric link shaft 6 and tilt tube 21 extend.
  • the arm 4 Cb has a hole 4 Cc cut through it near its outer end.
  • the piston rod 7 extends through the arm hole 4 Cc. Accordingly, the piston rod 7 can be longer than the link shaft 6 .
  • the distance LC which is equivalent to the arm length LB of the second arms 4 B of the linking means 4 , may be equal to or longer than a length which allows for the necessary cylinder stroke.
  • the eccentric link shaft 6 and tilt tube 21 extend through the eccentric cams 6 A of the linking means 4 C.
  • the phase between the tilt tube 21 and piston rod 7 can be displaced through the eccentric link shaft 6 .
  • the linking means 4 C absorb the variation in the relative position between the steering lever 10 and hydraulic cylinder 8 so that the engine 1 can tilt at any steering angle.
  • a steering apparatus for an outboard marine engine which includes a hydraulic cylinder, can be fitted to any type of bracket on a boat hull, tilt to the maximum without interfering with the bracket and steer the boat to the limit equally on both sides.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Actuator (AREA)
US10/924,765 2004-04-05 2004-08-25 Steering apparatus for an outboard marine engine Expired - Fee Related US7037152B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004-110764 2004-04-05
JP2004110764A JP2005289300A (ja) 2004-04-05 2004-04-05 船外機用操舵装置

Publications (2)

Publication Number Publication Date
US20050221696A1 US20050221696A1 (en) 2005-10-06
US7037152B2 true US7037152B2 (en) 2006-05-02

Family

ID=35054978

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/924,765 Expired - Fee Related US7037152B2 (en) 2004-04-05 2004-08-25 Steering apparatus for an outboard marine engine

Country Status (3)

Country Link
US (1) US7037152B2 (ja)
JP (1) JP2005289300A (ja)
CA (1) CA2479185A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050164572A1 (en) * 2004-01-26 2005-07-28 Katsuhiko Sasayama Hydraulic steering apparatus for an outboard engine
US8046122B1 (en) 2008-08-04 2011-10-25 Brunswick Corporation Control system for a marine vessel hydraulic steering cylinder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7150664B1 (en) * 2005-12-08 2006-12-19 Brunswick Corporation Steering actuator for an outboard motor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373920A (en) 1980-07-28 1983-02-15 Outboard Marine Corporation Marine propulsion device steering mechanism
JPH0333559A (ja) 1989-06-19 1991-02-13 Eaton Corp 加圧流体作動式シフト機構の制御装置およびその方法
US5002510A (en) * 1989-01-19 1991-03-26 Martin Rump Steering mechanism for marine propulsion devices
US5997370A (en) 1998-01-23 1999-12-07 Teleflex (Canada) Limited Outboard hydraulic steering assembly with reduced support bracket rotation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373920A (en) 1980-07-28 1983-02-15 Outboard Marine Corporation Marine propulsion device steering mechanism
US5002510A (en) * 1989-01-19 1991-03-26 Martin Rump Steering mechanism for marine propulsion devices
JPH0333559A (ja) 1989-06-19 1991-02-13 Eaton Corp 加圧流体作動式シフト機構の制御装置およびその方法
US5997370A (en) 1998-01-23 1999-12-07 Teleflex (Canada) Limited Outboard hydraulic steering assembly with reduced support bracket rotation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050164572A1 (en) * 2004-01-26 2005-07-28 Katsuhiko Sasayama Hydraulic steering apparatus for an outboard engine
US7147525B2 (en) * 2004-01-26 2006-12-12 Marol Co., Ltd. Hydraulic steering apparatus for an outboard engine
US8046122B1 (en) 2008-08-04 2011-10-25 Brunswick Corporation Control system for a marine vessel hydraulic steering cylinder

Also Published As

Publication number Publication date
JP2005289300A (ja) 2005-10-20
CA2479185A1 (en) 2005-10-05
US20050221696A1 (en) 2005-10-06

Similar Documents

Publication Publication Date Title
AU748006B2 (en) Pedestal mount for an outboard motor
US6183321B1 (en) Outboard motor with a hydraulic pump and an electric motor located within a steering mechanism
US7347753B1 (en) Hydraulic actuation system for a marine propulsion device
CA2259891C (en) Outboard hydraulic steering assembly with reduced support bracket rotation
US5707263A (en) Adjustable trim position system
CA2259854C (en) Twin outboard motor hydraulic steering system
US7255616B1 (en) Steering system for a marine propulsion device
JP5993152B2 (ja) 長さ調節可能な船舶エンジン用タイバー
US7128626B2 (en) Marine steering assembly with connecting member
US7037152B2 (en) Steering apparatus for an outboard marine engine
US7147525B2 (en) Hydraulic steering apparatus for an outboard engine
JP4740204B2 (ja) 船外機用流体圧式操舵装置
US8147283B2 (en) Steering apparatus for outboard motor
US4563155A (en) Steering post mounted propulsion assembly
JP4448706B2 (ja) 船外機の操舵装置用アームの取付金具
CA2230311C (en) Steering cylinder with engine-clearance features and method for making the cylinder
US6878023B2 (en) Length-adjustable topstay for riggers
JP4740213B2 (ja) 船外機用操舵装置
US20110065340A1 (en) Outboard motor steering structure
RU114450U1 (ru) Колесная опора для перемещения маломерного судна
US4643686A (en) Steering post mounted propulsion assembly
US7156708B2 (en) Marine steering assembly with integrated pivot pin
JP4791738B2 (ja) 船外機のチルト装置
US7491103B1 (en) Marine propulsion device with access opening
JPH04362494A (ja) 船外機用操舵機構

Legal Events

Date Code Title Description
AS Assignment

Owner name: MAROL CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SASAYAMA, KATSUHIKO;SHIMADA, KENICHI;ARAKAWA, KATSUHIKO;REEL/FRAME:015736/0056;SIGNING DATES FROM 20040820 TO 20040823

Owner name: Y'S GEAR CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SASAYAMA, KATSUHIKO;SHIMADA, KENICHI;ARAKAWA, KATSUHIKO;REEL/FRAME:015736/0056;SIGNING DATES FROM 20040820 TO 20040823

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20100502